d6176b0dca
This CL is part II of IV (I broke down the 1280 files into 4 CLs). Review URL: https://codereview.appspot.com/6474054 git-svn-id: http://skia.googlecode.com/svn/trunk@5263 2bbb7eff-a529-9590-31e7-b0007b416f81
137 lines
3.2 KiB
C++
137 lines
3.2 KiB
C++
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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namespace skiagm {
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static void make_bm(SkBitmap* bm) {
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const SkColor colors[4] = {
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SK_ColorRED, SK_ColorGREEN,
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SK_ColorBLUE, SK_ColorWHITE
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};
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SkPMColor colorsPM[4];
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for (size_t i = 0; i < SK_ARRAY_COUNT(colors); ++i) {
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colorsPM[i] = SkPreMultiplyColor(colors[i]);
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}
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SkColorTable* ctable = new SkColorTable(colorsPM, 4);
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bm->setConfig(SkBitmap::kIndex8_Config, 2, 2);
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bm->allocPixels(ctable);
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ctable->unref();
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*bm->getAddr8(0, 0) = 0;
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*bm->getAddr8(1, 0) = 1;
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*bm->getAddr8(0, 1) = 2;
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*bm->getAddr8(1, 1) = 3;
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}
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static SkScalar draw_bm(SkCanvas* canvas, const SkBitmap& bm,
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SkScalar x, SkScalar y, SkPaint* paint) {
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canvas->drawBitmap(bm, x, y, paint);
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return SkIntToScalar(bm.width()) * 5/4;
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}
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static SkScalar draw_set(SkCanvas* c, const SkBitmap& bm, SkScalar x,
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SkPaint* p) {
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x += draw_bm(c, bm, x, 0, p);
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p->setFilterBitmap(true);
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x += draw_bm(c, bm, x, 0, p);
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p->setDither(true);
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return x + draw_bm(c, bm, x, 0, p);
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}
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static const char* gConfigNames[] = {
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"unknown config",
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"A1",
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"A8",
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"Index8",
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"565",
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"4444",
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"8888"
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};
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static SkScalar draw_row(SkCanvas* canvas, const SkBitmap& bm) {
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SkAutoCanvasRestore acr(canvas, true);
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SkPaint paint;
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SkScalar x = 0;
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const int scale = 32;
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paint.setAntiAlias(true);
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const char* name = gConfigNames[bm.config()];
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canvas->drawText(name, strlen(name), x, SkIntToScalar(bm.height())*scale*5/8,
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paint);
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canvas->translate(SkIntToScalar(48), 0);
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canvas->scale(SkIntToScalar(scale), SkIntToScalar(scale));
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x += draw_set(canvas, bm, 0, &paint);
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paint.reset();
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paint.setAlpha(0x80);
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draw_set(canvas, bm, x, &paint);
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return x * scale / 3;
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}
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class FilterGM : public GM {
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bool fOnce;
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void init() {
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if (fOnce) {
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return;
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}
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fOnce = true;
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make_bm(&fBM8);
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fBM8.copyTo(&fBM4444, SkBitmap::kARGB_4444_Config);
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fBM8.copyTo(&fBM16, SkBitmap::kRGB_565_Config);
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fBM8.copyTo(&fBM32, SkBitmap::kARGB_8888_Config);
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}
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public:
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SkBitmap fBM8, fBM4444, fBM16, fBM32;
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FilterGM() : fOnce(false) {
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this->setBGColor(0xFFDDDDDD);
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}
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protected:
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virtual SkString onShortName() {
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return SkString("bitmapfilters");
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}
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virtual SkISize onISize() {
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return make_isize(540, 330);
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}
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virtual void onDraw(SkCanvas* canvas) {
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this->init();
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SkScalar x = SkIntToScalar(10);
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SkScalar y = SkIntToScalar(10);
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canvas->translate(x, y);
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y = draw_row(canvas, fBM8);
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canvas->translate(0, y);
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y = draw_row(canvas, fBM4444);
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canvas->translate(0, y);
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y = draw_row(canvas, fBM16);
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canvas->translate(0, y);
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draw_row(canvas, fBM32);
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}
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private:
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static GM* MyFactory(void*) { return new FilterGM; }
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static GMRegistry reg(MyFactory);
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}
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